Noun- The act of draining a Corona beer in someone's ass, and then sucking it out as hard as you can. When the person getting thier ass sucked is ready, they will push (as if taking a shit) and "shotgun" the rest of the beer into the drinker's mouth.
Originally by: DLWJR

During the exciting study group, Martha pulled out a thirty-six of corona, and we decided to take Royal Mexican Shotguns from her ass. During my turn she pushed to early and my chest and mouth were covered in beer and ass juice.